*{
    margin:0;
}

html, body{
    width:100%;
    height: 100%;
    max-height: 1080px;
    min-height: 700px;
    min-width: 1520px;
    background-image: url(../picture/background.png);
    background-size: 100% 1080px; 
    background-repeat: no-repeat;
    /* overflow-y:hidden */
}

i{
    font-style: normal;
}